.admains{
    display: inline-flex;
    position: absolute;
    top:50%;
    transform: translateY(-50%);
    width:100%;
    justify-content: space-evenly;
    text-align: center;
    min-width: 1280px;
}
.usrc{
    width: 380px;
    height: 500px;
    box-shadow: 0px 0px 2px 2px gray;
}
.usrc:hover{
    animation: usrc 1s forwards;
    -webkit-animation: usrc 1s forwards;
}
@keyframes usrc{
    0%{width: 380px;height: 500px;box-shadow: 0px 0px 2px 2px gray;}
    100%{width:390px;height: 510px;box-shadow: 0px 0px 2px 2px rgb(0, 255, 242);background-color: rgba(0, 255, 242,0.219);}
}
@-webkit-keyframes usrc{
    0%{width: 380px;height: 500px;box-shadow: 0px 0px 2px 2px gray;}
    100%{width:390px;height: 510px;box-shadow: 0px 0px 2px 2px rgb(0, 255, 242);background-color:rgba(0, 255, 242,0.219);}
}
.articlec{
    width: 380px;
    height: 500px;
    box-shadow: 0px 0px 2px 2px gray;
}
.articlec:hover{
    animation: arcs 1s forwards;
    -webkit-animation: arcs 1s forwards;
}
@keyframes arcs{
    0%{width: 380px;height: 500px;box-shadow: 0px 0px 2px 2px gray;}
    100%{width:385px;height: 510px;box-shadow: 0px 0px 2px 2px rgb(0, 174, 255);background-color:rgba(0, 174, 255, 0.219);}
}
@-webkit-keyframes arcs{
    0%{width: 380px;height: 500px;box-shadow: 0px 0px 2px 2px gray;}
    100%{width:390px;height: 510px;box-shadow: 0px 0px 2px 2px rgb(0, 174, 255);background-color:rgba(0, 174, 255, 0.219);}
}
.commc{
    width: 380px;
    height: 500px;
    box-shadow: 0px 0px 2px 2px gray;
}
.commc:hover{
    animation: ccs 1s forwards;
    -webkit-animation: ccs 1s forwards;
}
@keyframes ccs{
    0%{width: 380px;height: 500px;box-shadow: 0px 0px 2px 2px gray;}
    100%{width:390px;height: 510px;box-shadow: 0px 0px 2px 2px rgb(0, 110, 255);background-color: rgba(0, 110, 255, 0.219);}
}
@-webkit-keyframes ccs{
    0%{width: 380px;height: 500px;box-shadow: 0px 0px 2px 2px gray;}
    100%{width:390px;height: 510px;box-shadow: 0px 0px 2px 2px rgb(0, 110, 255);background-color: rgba(0, 110, 255, 0.219);}
}
.tydiv{
    cursor: pointer;
}
.tydiv img{
    width: 380px;
    height: 380px;
}
.tydiv p{
    font-size: 40px;
    font-weight: 100;
}
.maina{
    background-color: red;
    border-top:1px solid gray;
    width: 100%;
    height: calc(100% - 51px);
    position: absolute;
    min-width: 1280px;
}
.maina div{
    display: inline-block;
    margin: 0;
    padding: 0;
}
#left-bar{
    width:250px;
    height: 100%;
    background-color: white;
    border-right: 1px solid gray;
}
#left-bar ul li{
    width: 100%;
    height: 50px;
    font-size: 20px;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
}
#left-bar ul li:hover{
    background-color: rgba(128, 128, 128, 0.425);
}
#main-content{
    width: calc(100% - 251px);
    float: right;
    height: 100%;
    background-color: aliceblue;
}
.ifm{
    width: 100%;
    height: 100%;
    border: none;
}
